We’re looking for a Lead iOS Developer to own our iOS development and lead the entire mobile team (iOS and Android developers). 

You’ll be responsible for driving the architecture, technical strategy, and delivery of our iOS app while also coordinating with the Android developer to ensure consistent quality across both platforms

Responsibilities:

• Lead the design and development of our iOS application using Swift and modern iOS frameworks
• Define and maintain mobile architecture, code quality, and best practices across the mobile team
• Mentor and support the iOS and Android developers to deliver features efficiently
• Collaborate closely with Product, Backend, and Security teams to integrate new features and APIs
• Ensure the mobile apps meet high security and compliance standards (VASP, PCI/DSS, DORA)
• Oversee app store releases, build pipelines, and CI/CD integration for mobile apps
• Participate in strategic decisions on the mobile roadmap and user experience

• Conduct code reviews, performance optimizations, and manage technical debt

   

Requirements:

• 5+ years of professional iOS development experience (Swift, UIKit/SwiftUI)
• Strong understanding of mobile app architecture, design patterns, and modular codebases
• Experience leading or mentoring mobile teams (iOS and/or Android)
• Familiarity with secure mobile development and cryptography best practices
• Experience integrating REST APIs, WebSockets, and third-party SDKs
• Knowledge of App Store guidelines, CI/CD pipelines, and release processes

• Excellent communication skills and ability to collaborate cross-functionally

   

Nice to Have:

• Experience with Kotlin or Android development
• Knowledge of blockchain, crypto wallets, or fintech products
• Familiarity with UX/UI principles for finance/crypto apps

Requirements

• 3+ years of experience working with Salesforce
• Experience with Salesforce Nonprofit Cloud and/or Grantmaking Cloud
• Strong understanding of grant management or nonprofit business processes
• Experience with: Flow Builder, Reports & Dashboards, Permission Sets & Security, Data Import/Export, Basic Salesforce automation
• Understanding of Salesforce data model and platform capabilities
• Good communication skills and ability to work with stakeholders
• English level: Upper-Intermediate
• Ukrainian level: Advanced 
   

Nice to Have

• Salesforce Administrator certification
• Experience with Experience Cloud
• Knowledge of Apex or SOQL
• Experience working in consulting, outsourcing, or implementation projects
• Previous experience with nonprofit organizations or foundations
   

Responsibilities

• Configure and maintain Salesforce Nonprofit Cloud solutions, including Grantmaking-related functionality
• Support grant lifecycle processes: applications, reviews, approvals, funding, and reporting
• Gather business requirements from stakeholders and translate them into Salesforce solutions
• Customize objects, flows, page layouts, validation rules, reports, and dashboards
• Manage user access, profiles, permissions, and data quality
• Collaborate with administrators, developers, and business teams to improve platform processes
• Support integrations with third-party systems when required
• Provide user training and ongoing platform support
• Participate in testing, deployments, and documentation creation
   

We offer

• Budget for Medical Insurance
• Budget for Wellbeing 
• Paid vacation
• Paid sick leaves
• “Synebo talk” internal educational program
• English lessons
• Team building activities online/offline
• Salesforce certification
• Regular cultural events

Join the Data Engineering team to contribute to the ongoing maintenance and improvement of an internal assistant that uses hosted APIs and internal knowledge sources, with a focus on reliability, retrieval quality, and operational excellence.

Responsibilities:

• Maintain and enhance ingestion/enrichment pipelines for internal content (parsing/extraction, normalization, metadata enrichment, deduplication, and quality monitoring)
• Implement and maintain access-aware retrieval by propagating/enforcing document permissions through indexing and query-time filters, including audit logs and validation tests
• Improve source attribution so responses reliably point to the correct documents and sections in a consistent format.
• Extend and harden tool/workflow execution and automations (scheduled/trigger-based), including retries, timeouts, idempotency, concurrency controls, and run history
• Operate the platform in production: observability (logs/metrics/tracing), alerting, incident support, performance tuning, and cost controls, plus runbooks and handover documentation

Mandatory Skills:

8+ years of hands-on experience in Data Science and 2+ years in Machine Learning, with a proven track record, demonstrated through a robust portfolio of projects.
Strong programming skills in languages such as Python and familiarity building ETL pipelines.
Expertise in SQL and experience with both relational (preferably Postgres) and NoSQL databases
Solid experience with OpenSearch
Familiarity with AWS cloud platform and its services.
Experience with version control systems (e.g., Git) and CI/CD pipelines.
Ability to build scalable infrastructure to embed and search very large number of documents.
Ability to move fast in an environment where things are sometimes loosely defined and may have competing priorities or deadlines.
Expertise in ML
Strong English skills (B2 and higher)
Strong verbal and written communication skills.
Ability to work independently and collaborate in a group.

Nice-to-Have Skills:

Agile certification
Oracle/Microsoft attestations and certifications
Domain knowledge - Trading and Capital Markets

Senior IT (Infrastructure?) Security Engineer

(Єдиний відповідальний за безпеку офісної ІТ-інфраструктури)🎯

Повна відповідальність за інформаційну та технічну безпеку офісної ІТ-інфраструктури компанії: стратегія, архітектура, впровадження рішень, навчання персоналу, операційний контроль та реагування на інциденти.

Це автономна роль без окремого Head of Security — спеціаліст формує та підтримує систему безпеки end-to-end.

Зона відповідальності

1. Архітектура та стратегія безпеки

• Проектування безпечної мережевої архітектури (segmentation, VLAN, Zero Trust).

• Вибір та впровадження security-рішень (EDR/XDR, SIEM, PAM, DLP, NAC).

• Формування roadmap розвитку безпеки.

• Побудова системи управління вразливістю

• Контроль за безпекою робочих місць співробітників та офісної техніки.

• Контроль видачі та відкликання доступів.
  
  

2. Захист інфраструктури

Мережа

• Firewall management (FortiGate/Cisco/Palo Alto або аналог).

• IDS/IPS, VPN, Secure Wi-Fi (WPA3, 802.1X).

• Моніторинг мережевих аномалій.

Сервери та endpoint-і

• Patch management.

• Hardening систем (Windows Server/Linux).

• Шифрування дисків

• Управління привілейованими доступами (PAM).

• Контроль MDM/GPO політик.

3. Управління доступами

• Адміністрування Active Directory / Entra ID або аналогів.

• RBAC.

• MFA.

• Регулярний аудит прав доступу.

  ---

• Побудова та підтримка Incident Response Plan.

• Аналіз логів (SIEM).

• Розслідування інцидентів.

• Root Cause Analysis.

• Пост Інцидентні звіти та рекомендації.

  ---

5. Комплаєнс та політики

• Розробка та актуалізація політик інформаційної безпеки.

• Підготовка до аудитів (ISO 27001/NIST/GDPR — залежно від потреб бізнесу).

• Внутрішні перевірки.

• Контроль відповідності процесів вимогам безпеки.
  
  

6. Security Awareness

• Проведення навчання співробітників.

• Організація фішинг-тестів.

• Консультації з безпечної роботи з даними.
  
  

Необхідний попередній досвід та знання:

• 5+ років у сфері інформаційної безпеки чи інфраструктури.

• Досвід побудови security-процесів самостійно.

• Практика проходження аудитів.

Tech:

• Глибоке розуміння TCP/IP, DNS, DHCP, VPN.

• Досвід проектування мережевої архітектури.

• Практика роботи з firewall enterprise-рівня.

• Впровадження та налаштування EDR/XDR.

• Робота із SIEM.

• Управління Active Directory / Entra ID.

• Cloud security (Microsoft 365/Azure/Google Workspace).

• Розуміння криптографії та принципів управління ключами.

• Досвід vulnerability management.

Буде плюсом

• CISSP/CEH/Security+ або аналог.

• ISO 27001 Lead Implementer.

• Досвід побудови безпеки “з нуля”.
  
  

Очікування від ролі

• Повна автономність у прийнятті рішень.

• Відповідальність за рівень кібер ризику компанії.

• Проактивне виявлення загроз.

• Побудова системи безпеки, а не лише її підтримка.

• Здатність аргументувати бюджет та інвестиції у безпеку.

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe.

About the client:
Our client is a global Solution Integrator specializing in enterprise-grade infrastructure, platform engineering, and cloud-native architectures. They partner with the world's leading technology vendors to help organizations design and implement transformative solutions that drive innovation, efficiency, and growth. 
 

Office location: Vilnius (hybrid format, office visit 1-2 times a week)

About the role: 
We are looking for a Full Stack Engineer to join the CTO Office and take ownership of our client’s product development lifecycle. You'll work hand-in-hand with the CTO Office team, taking initiatives that have been validated as POCs and leading them into production-grade, scalable solutions.

Responsibilities:
- Take validated POCs from the CTO Office and architect, build, and ship them as production-ready applications
- Design and develop full-stack solutions — modern frontends paired with robust, scalable backends
- Build and deploy within the AWS ecosystem (Lambda, ECS/EKS, DynamoDB, S3, RDS, API Gateway, CDK/CloudFormation, and more)
- Own the CI/CD pipeline — design, build, and maintain automated workflows using GitHub Actions
- Design and build internal agentic AI solutions using LangChain and LangGraph — from multi-step agent orchestration to RAG pipelines and tool-augmented workflows
- Leverage Agentic IDE tools (Cursor, Claude Code, and similar) as a core part of your development workflow, applying best practices around skills, MCPs, agents, and prompt engineering to accelerate delivery
- Collaborate closely with the CTO Office, product stakeholders, sales, and pre-sales teams to translate business needs into elegant technical solutions 
- Make pragmatic technology decisions that balance speed, quality, and maintainability

Requirements:
Must-Have:
- 5+ years of professional full-stack development experience
- Frontend: Strong proficiency with Vue.js or React (with modern tooling such as Nuxt/Next.js, TypeScript, Vite, Tailwind CSS)
- A builder's mindset — you thrive on taking something from prototype to production
- Understanding of system design principles — you can architect scalable, reliable distributed systems and make sound trade-offs
- Grasp of data structures and design patterns — to work alongside your Agentic IDE you write efficient, well-structured code
- Backend: Solid experience with Python and modern frameworks — primarily FastAPI, or Django/Flask
- Hands-on experience with the AWS cloud ecosystem — you've built and deployed real workloads on AWS
- Hands-on experience building agentic AI systems with LangChain and LangGraph — including multi-agent orchestration, tool use, and RAG patterns
- Proven experience designing and maintaining CI/CD pipelines with GitHub Actions including automated PR based Code Reviews.
- Working knowledge of Agentic IDEs and AI-assisted development (Cursor, Claude Code, Windsurf, or similar) — including familiarity with skills, MCP servers, agents, and AI-driven development best practices
- Strong understanding of RESTful API design, relational and NoSQL databases, and cloud-native architecture patterns

Nice-to-Have:
- Experience with Amazon Bedrock and/or Azure AI Foundry for building and deploying AI/ML solutions on managed cloud platforms
- Experience with Infrastructure as Code (AWS CDK, Terraform, CloudFormation)
- Experience in security infrastructure (IDP, authentication protocols - S) and writing secured applications 
- Security & Identity - understanding of application security, including SSL/TLS certificates, secret management, and identity providers (IDP). Experience implementing authentication and authorization protocols such as SAML, OAuth2, and JWT.
- Foundational SRE knowledge, including monitoring, logging, and observability (e.g., CloudWatch, Prometheus, ELK) to ensure production stability and performance.
- Familiarity with FinOps concepts, cloud cost management, or multi-cloud environments
- Experience building data-driven tools — predictive models, analytics dashboards, or recommendation engines
- Exposure to Azure services alongside AWS
- Experience with containerization and orchestration (Docker, Kubernetes)
- Background in B2B SaaS or enterprise software development

About the Role

We are looking for a Cloud Platform Engineer with strong expertise in Azure Cloud and Kubernetes to join a growing engineering team. In this role, you will be responsible for designing, implementing, and supporting cloud-native platforms, workflow orchestration solutions, and event-driven architectures. You will work closely with international stakeholders to improve scalability, reliability, and automation across modern cloud environments.

Responsibilities

• Design, implement, and support cloud-native and containerized solutions
• Manage, optimize, and troubleshoot Kubernetes environments (AKS preferred)
• Develop and maintain workflow orchestration platforms and automation pipelines
• Build and support messaging and event-driven integration solutions
• Improve CI/CD processes, GitOps practices, and infrastructure automation
• Implement Infrastructure as Code (IaC) and cloud governance best practices
• Monitor platform health, performance, and reliability
• Collaborate with architects, developers, and business stakeholders in an international environment
• Contribute to platform improvements, operational excellence, and technical standards

Requirements

Must Have

• Strong hands-on experience with Kubernetes (AKS preferred)
• Solid experience with Microsoft Azure
• Experience with workflow orchestration tools such as:
  • Argo Workflows
  • Temporal
  • Apache Airflow
• Experience with messaging and integration technologies:
  • Kafka
  • Azure Service Bus
  • Azure Event Hub
• Strong Python skills for automation and scripting
• Experience with CI/CD pipelines and DevOps practices
• Knowledge of GitOps principles
• Experience with Infrastructure as Code (Terraform, Bicep, or similar)
• Experience with monitoring and observability solutions
• Understanding of cloud-native architecture and distributed systems
• Good communication skills and consultative mindset
• Upper-Intermediate English or higher

Nice to Have

• Experience with ArgoCD
• Experience with Helm
• Azure certifications
• Experience with microservices architecture
• Experience working in enterprise cloud environments
• Knowledge of security best practices in Kubernetes and Azure

What We Offer

• Opportunity to work on modern cloud-native platforms
• International and collaborative environment
• Challenging technical projects using modern technologies
• Long-term cooperation
• Remote work flexibility
• Professional growth and development opportunities

Technology Stack

Azure, AKS, Kubernetes, Python, Kafka, Azure Service Bus, Azure Event Hub, Argo Workflows, Temporal, Airflow, GitOps, CI/CD, Terraform, IaC, Monitoring & Observability

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is looking for a Senior Full Stack Engineer with strong expertise across both frontend and backend, a passion for building scalable, high-quality products, and proven ability to handle end-to-end feature development.

In this role, you’ll play a key part in advancing our web architecture, improving system performance, and enhancing the overall development standards of our platform. You’ll work on complex real-time products, helping shape fast, reliable, and user-friendly experiences.

If you enjoy solving technical challenges, working with modern technologies, and creating clean, efficient solutions — we’d love to connect.

This role offers the opportunity to make a direct impact on product quality, technical decisions, and overall platform growth within a fast-moving and collaborative environment.

Key Requirements:
🔹 5+ years of software engineering experience, with strong frontend expertise in modern JavaScript frameworks (React, Angular, Vue), TypeScript, and modern build tools (Vite, Next.js, SWC);
🔹 Proven experience improving frontend architecture and scaling web applications;
🔹 Strong understanding of TypeScript, build tools (Webpack, Vite), and browser APIs;
🔹 Solid backend fundamentals 5+ years — API design, data flow management, and building scalable systems with Python as a must-have and Node.js considered a strong plus.
🔹 Hands-on experience with AI tools such as Cursor, Claude, and ChatGPT
🔹 Product-oriented mindset with strong attention to UX, quality, and maintainability;
🔹 Strong communication skills and the ability to work effectively in cross-functional teams;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Drive frontend improvements by introducing better development practices, tools, and modern technologies;
🔹 Design and develop scalable, high-performance web applications using React and modern frontend frameworks;
🔹 Take ownership of features from planning to production, including technical design, implementation, and optimization;
🔹 Work closely with Product, Design, and engineering teams to deliver smooth and intuitive user experiences;
🔹 Support backend development in Python to ensure strong integration across the full product stack;
🔹 Improve development processes, code quality, testing, and overall engineering efficiency;
🔹 Focus on performance, reliability, and maintainability across the platform;

Interview stages:
🔹 HR Interview
🔹 Intro Call
🔹 Technical Interview
🔹 Final Interview
🔹 Reference Check
🔹 Offer

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

We are looking for a Founding Engineer to join a fast-growing start-up developing a product for automated lead generation and recruitment outreach.

The ideal candidate has previous startup experience and is passionate about building products from the ground up. We’re looking for someone who genuinely enjoys coding, solving complex technical challenges, taking ownership, and moving fast in a high-impact environment.

About the Role

We are specifically looking for a Founding Engineer who is skilled enough to drive architecture and infrastructure decisions while remaining deeply hands-on in development.

The key requirements are a startup mindset, ownership, autonomy, and strong technical execution.

You’ll work directly with the founder on both technical and product decisions while helping to shape the company’s engineering culture and technical direction.

What You’ll Do

• Architect, prototype, and build product features from scratch.
• Develop integrations with AI platforms (OpenAI, Perplexity, etc.).
• Build integrations with 3rd-party systems and CRMs.
• Design scalable backend services and APIs.
• Work on AI agents, RAG systems, and prompt engineering.
• Design and optimize SQL databases.
• Build cloud-native infrastructure on AWS/GCP/Azure.
• Implement asynchronous task-processing patterns (RabbitMQ, SQS).
• Collaborate directly with the founder on product and business decisions.
• Help define technical standards and engineering best practices.
• Contribute to a fast-moving startup environment with high ownership.

RequirementsMust-Have

• Senior-level software engineering experience
• 1+ year of startup experience (ideally direct hire at a start up)
• 5+ years of commercial development experience
• Strong hands-on experience with:
  • TypeScript
  • Node.js
  • REST APIs
  • JSON
  • Git
• Experience building AI agents, RAG systems, or LLM-powered products
• Strong prompt engineering skills
• Experience with API integrations
• Strong SQL and database design skills
• Experience with cloud infrastructure (AWS, GCP, or Azure)
• Understanding of asynchronous systems and queues (RabbitMQ, SQS, or similar)
• Strong communication skills and product mindset
• High level of ownership and autonomy

Nice-to-Have

• Previous CTO or technical leadership experience
• Experience with n8n or Make
• Experience building SaaS products
• Experience scaling early-stage startups
• Infrastructure and architecture leadership experience

What We Offer

• Full-time engagement
• Fully remote work
• Long-term cooperation
• Founding member equity
• Opportunity to directly influence company and product strategy
• Fast personal and professional growth
• Freedom, ownership, and real responsibility
• Opportunity to grow into a future CTO role
• Modern AI-first development environment (including Cursor Agent mode)
• U.S. company contract
• Paid vacation days

Recruitment Process

1. Pre-screen with a recruitment manager
2. Pre-screen call witht the startup founder
3. Technical deep-dive interview with a small live coding session
4. Call to meet the team

We are looking for a Founding Engineer to join a fast-growing start-up developing a product for automated lead generation and recruitment outreach.

The ideal candidate has previous startup experience and is passionate about building products from the ground up. We’re looking for someone who genuinely enjoys coding, solving complex technical challenges, taking ownership, and moving fast in a high-impact environment.

About the Role

We are specifically looking for a Founding Engineer who is skilled enough to drive architecture and infrastructure decisions while remaining deeply hands-on in development.

The key requirements are a startup mindset, ownership, autonomy, and strong technical execution.

You’ll work directly with the founder on both technical and product decisions while helping to shape the company’s engineering culture and technical direction.

What You’ll Do

• Architect, prototype, and build product features from scratch.
• Develop integrations with AI platforms (OpenAI, Perplexity, etc.).
• Build integrations with 3rd-party systems and CRMs.
• Design scalable backend services and APIs.
• Work on AI agents, RAG systems, and prompt engineering.
• Design and optimize SQL databases.
• Build cloud-native infrastructure on AWS/GCP/Azure.
• Implement asynchronous task-processing patterns (RabbitMQ, SQS).
• Collaborate directly with the founder on product and business decisions.
• Help define technical standards and engineering best practices.
• Contribute to a fast-moving startup environment with high ownership.

RequirementsMust-Have

• Senior-level software engineering experience
• 1+ year of startup experience (ideally direct hire at a start up)
• 5+ years of commercial development experience
• Strong hands-on experience with:
  • TypeScript
  • Node.js
  • REST APIs
  • JSON
  • Git
• Experience building AI agents, RAG systems, or LLM-powered products
• Strong prompt engineering skills
• Experience with API integrations
• Strong SQL and database design skills
• Experience with cloud infrastructure (AWS, GCP, or Azure)
• Understanding of asynchronous systems and queues (RabbitMQ, SQS, or similar)
• Strong communication skills and product mindset
• High level of ownership and autonomy

Nice-to-Have

• Previous CTO or technical leadership experience
• Experience with n8n or Make
• Experience building SaaS products
• Experience scaling early-stage startups
• Infrastructure and architecture leadership experience

What We Offer

• Full-time engagement
• Fully remote work
• Long-term cooperation
• Founding member equity
• Opportunity to directly influence company and product strategy
• Fast personal and professional growth
• Freedom, ownership, and real responsibility
• Opportunity to grow into a future CTO role
• Modern AI-first development environment (including Cursor Agent mode)
• U.S. company contract
• Paid vacation days

Recruitment Process

1. Pre-screen with a recruitment manager
2. Pre-screen call witht the startup founder
3. Technical deep-dive interview with a small live coding session
4. Call to meet the team

Hesh is a Human-Centric Operating System for the craft economy: an integrated platform combining PLM (Product Lifecycle Management), MES (Manufacturing Execution System), ERP (Enterprise Resource Planning), and MRP (Material Requirements Planning), all driven by AI agents.

What You'll Be Doing (Key Responsibilities)

Your primary mission will be to build and execute the B2B growth engine for Hesh. This role is a hybrid of strategic business development and hands-on revenue operations, targeting large-scale Enterprise clients in the craft and manufacturing sectors.

B2B Business Development (BizDev)

• Identify, segment, and prioritize target markets and key verticals (e.g., large-scale artisanal producers, specialized manufacturers) for Enterprise-level client acquisition.
• Develop, test, and execute data-driven Go-to-Market (GTM) strategies for new territories and B2B segments.
• Proactively source, engage, and build relationships with key decision-makers (e.g., VPs of Operations, Supply Chain, IT) within large corporations.
• Develop and maintain strategic partnerships (e.g., with industry consultants, hardware providers, supply chain platforms) that generate qualified leads and new revenue streams.

Revenue Growth Management

• Analyze and optimize the entire B2B sales funnel to increase conversion rates (from MQL to paying customer) and expand the average contract value (ACV).
• Design and iterate on pricing and packaging strategies tailored for corporate and Enterprise clients, including custom proposals for our integrated (PLM/MES/ERP) solution.
• Own and analyze key revenue metrics (MRR, LTV, Customer Churn, ARPA), formulating and testing hypotheses to improve them.
• Collaborate closely with Product and Sales teams, acting as the voice of the Enterprise market to help shape solutions that meet complex client needs.

Demand Generation

• Participate in the development of B2B marketing strategies (including Account-Based Marketing - ABM) aimed at generating a predictable pipeline of qualified leads (MQLs/SQLs) for the Enterprise sales funnel.

What We Offer

Competitive salary based on experience

Flexible schedule, remote-first culture

Stable product with growth perspective

18 days paid vacation + 10 sick days annually

Performance reviews and development opportunities

Impact Real ability to influence product direction and features

Our Client is a cybersecurity software company that specializes in network and cloud security policy management and automation. It's platform helps large enterprises visualize, automate, and enforce consistent security policies across complex hybrid environments — including firewalls, cloud services, SASE, SD-WAN, and microsegmentation — while ensuring compliance and reducing risk.

Position Description:

This role combines excellent technical skills, driving multidisciplinary Data Science initiatives within complex, security policy management systems. The role drives the development of innovative, production-grade AI capabilities - including security AI agents and advanced machine learning models built on complex security data. Original thinking, deep technical rigor, intellectual agility, and exceptional problem-solving are essential.

Key Responsibilities

• Develop Data Science initiatives from problem definition through validation, production deployment, and monitoring of AI systems
• Develop security-focused AI agents and reasoning systems
• Develop advanced ML capabilities, including predictive modeling, anomaly detection, and classification
• Adapt and fine-tune LLM technologies for domain-specific security use cases

Position Requirements:

• M.Sc. in Data Science, Computer Science, Statistics, Mathematics, or a related quantitative discipline
• At least 3 years of hands-on Data Science experience, delivering end-to-end solutions into production environments
• Deep understanding of machine learning theory and practical model behavior
• Expertise in Python and the modern Data Science ecosystem (NumPy, Pandas, Scikit-learn, PyTorch / TensorFlow, etc.)
• Solid understanding of LLM architectures and fine-tuning methodologies
• Excellent interpersonal skills and proven ability to work within multidisciplinary product teams
• Strong analytical rigor and structured problem-solving capability

On behalf of our Client from the UK, Mobilunity is looking for a DevOps Engineer

Our Client is a fast-growing SaaS company operating in the telecom and subscription billing space. Their platform supports billing operations for telecom providers and service companies, focusing on reliability, scalability, and continuous product growth.

We are looking for a hands-on DevOps Engineer to contribute to the reliability, scalability, and
automation of our platform and delivery processes. The focus is on building, improving, and
operating services through code and automation — supporting consistent deployments and stable
environments, while working closely with development teams in alignment with Tekton’s technical
strategy.
This is a role for someone who prioritises automation over manual intervention, takes ownership of
assigned systems, and has the proactivity to identify and resolve issues before they become
problems.

Core Responsibilities
CI/CD Pipelines
• Build, maintain, and improve pipelines (AWS CodePipeline / CodeBuild / CodeDeploy or
equivalent) to support reliable and repeatable deployments
• Work with development teams to improve deployment processes and environment
consistency
Automation & Scripting
• Write and maintain Python and shell scripts to reduce manual tasks and improve operational
efficiency
• Prioritise infrastructure as code and automation approaches over manual intervention
AWS & Hybrid Infrastructure
• Operate and optimise workloads across AWS (ECS, EC2, RDS/Aurora, S3, IAM, VPC)
• Support existing Vinters data centre environments and maintain consistency between cloud
and on-premise workloads
• Contribute to infrastructure as code using Terraform and/or CloudFormation
Containerised Environments
• Build and support Docker-based and Linux containerised environments
• Help provide tooling, scripts, and guidance that enable developers to deploy and operate
services in test environments
Monitoring, Observability & Reliability
• Contribute to system observability using CloudWatch, Prometheus, and Grafana, ensuring
visibility into system health
• Assist in troubleshooting incidents, identifying root causes, and implementing fixes
• Support reliability and performance improvements across platform infrastructure
Security & Compliance
Confidential – For Recruitment Partners Only | Page 1

Tekton Billing | DevOps Engineer (AWS / CI/CD / Automation) – Remote
• Apply security and operational standards across infrastructure and pipelines
• Contribute to knowledge sharing and documentation, avoiding knowledge silos
Skills & Experience

• 5+ years of experience in DevOps, infrastructure, or platform engineering
• Hands-on experience with AWS services: ECS, EC2, RDS/Aurora, S3, IAM, VPC
• Experience building and maintaining CI/CD pipelines
• Strong scripting skills in Python and/or Bash
• Experience with Docker and Linux-based containerised environments
• Solid understanding of monitoring, logging, and alerting
• Ability to troubleshoot and resolve issues independently
• Good written and spoken English; able to collaborate asynchronously across time zones
Desirable
• Infrastructure as Code experience — Terraform and/or CloudFormation
• Exposure to hybrid environments (cloud + on-premise)
• Experience with Ansible or other configuration management tools
• Familiarity with Node.js and backend environments (PM2 or similar)
• Experience with security or compliance standards (e.g. ISO 27001)
• Familiarity with Grafana and Prometheus for observability

English: B2-C1

We are looking for a strong Senior QA Engineer with solid experience in crypto processing and blockchain-based payment systems. Experience with major networks such as Solana, Tron, Litecoin, and Bitcoin is very important. The ideal candidate should have hands-on experience testing complex web applications, crypto transaction flows, wallet operations, deposits, withdrawals, confirmations, edge cases, API integrations, and business-critical financial systems. Strong knowledge of OpenAPI testing, webhook validation, API requests/responses, error handling, data consistency, and integration testing is required. The role involves ensuring the quality, reliability, and security of crypto processing workflows across multiple blockchain networks, including testing transaction statuses, reconciliation logic, reporting, analytics, and multi-tenant role-based access scenarios.

We are looking for an experienced Head of Media Buying to join our team. In this role, you will lead and scale performance marketing operations across Tier-1 European markets, driving user acquisition, profitability, and sustainable growth. If you are passionate about performance marketing, data-driven decision-making, and building high-performing teams, we would love to hear from you!

HOW YOU WILL MAKE AN IMPACT

• You will develop and execute media buying strategies across Tier-1 European markets;
• You will manage and optimize multi-channel paid acquisition campaigns across Meta Ads, Google Ads, TikTok Ads, Programmatic/DSP, Push & In-App traffic, Influencer partnerships, ASA, and UAC;
• You will own media planning, budget allocation, and performance forecasting;
• You will manage monthly advertising budgets ranging from €300k to €1M+ while ensuring profitability and sustainable growth;
• You will monitor and improve key performance metrics such as CAC, CPA, CPI, CPL, ROAS, ROI, ROMI, LTV, Payback Period, and Contribution Margin;
• You will lead and mentor cross-functional performance teams, including Media Buyers, Creative Strategists, Designers, Analysts, and Tracking Specialists;
• You will collaborate closely with product, CRM, analytics, and creative teams to maximize acquisition and retention performance;
• You will build scalable acquisition processes, operational frameworks, and reporting structures;
• You will ensure accurate attribution, tracking, and data collection across all acquisition channels;
• You will continuously test, analyze, and optimize campaigns to identify new growth opportunities.

WHAT WILL HELP YOU SUCCEED IN THE ROLE

• 5+ years of experience in Performance Marketing or Media Buying;
• 2+ years of experience in a leadership position such as Head of Media Buying, Performance Lead, or Acquisition Lead;
• Proven experience working with Tier-1 European markets;
• Hands-on experience managing advertising budgets of €300k–€1M+ per month;
• Strong track record of scaling profitable acquisition campaigns;
• Experience in highly competitive industries such as iGaming and Sports Betting;
• Deep understanding of acquisition economics, including CAC, CPA, CPI, CPL, ROAS, ROI, ROMI, LTV, Payback Period, Contribution Margin, Revenue Attribution, Incrementality, Cohort Analysis, Funnel Optimization, and Retention Impact;
• Strong analytical mindset with the ability to make data-driven decisions;
• Excellent leadership, communication, and stakeholder management skills;
• Upper-Intermediate English level or higher.

REQUIRED SKILLS

• AppsFlyer, Adjust, Kochava, or Singular;
• Google Analytics 4 (GA4);
• Google Tag Manager (GTM);
• Meta Conversion API (CAPI);
• Server-side tracking;
• Postback integrations;
• Attribution and analytics systems.

WILL BE A PLUS

• Experience launching and scaling acquisition strategies for mobile-first products;
• Experience working with influencer and performance partnership channels;
• Strong understanding of marketing automation and CRM-driven acquisition initiatives;
• Experience building and scaling international performance teams;
• Knowledge of advanced experimentation frameworks and incrementality testing.

HOW WE WILL KEEP YOU SMILING

• Flexible working hours and a remote work setup, so you can plan work around your life and not your life around work!
• Unlimited vacation days and paid sick leave—because your rest matters.
• A competitive compensation that truly reflects your skills and expertise.
• Employee referral bonus and gifts to celebrate your special occasions.
• 50% financial support for learning expenses to supercharge your professional growth!
• A positive atmosphere where you always feel respected and truly belong.
• Inspirational team-building activities that turn colleagues into best friends.
• Wellness benefits: We’ll support your sports passions, from yoga classes to gym memberships.
• Co-working space reimbursement to save your nerves from always working from home :)

NuxGame is a dynamic IT company delivering top-tier software solutions for the iGaming industry. We empower operators of all sizes to expand into new markets, strengthen their existing brands, and achieve ambitious business goals.

We are looking for a Senior DevOps Engineer who is passionate about building resilient infrastructure and ensuring high availability for high-load systems. If you thrive in complex cloud-native environments and enjoy working with scalable architectures, this opportunity is for you.

 What Will Be Your Responsibilities

• Design, build, and optimize high-load, highly available server-side platforms (Nginx, PHP-FPM, MySQL, Redis, message queues).
• Architect and maintain Kubernetes-based platforms and containerized workloads (Docker, Helm, GitOps).
• Design and operate secure network infrastructure:
  • Firewalls (iptables, UFW, security groups, NACLs)
  • Reverse proxies and L7/L4 load balancers
• Implement DDoS protection and WAF strategies (Cloudflare, rate-limiting, bot protection).
• Build and maintain observability stack:
  • Metrics (VictoriaMetrics, Prometheus)
  • APM (New Relic, OpenTelemetry)
  • Centralized logging and alerting
• Design, implement, and continuously improve CI/CD pipelines (Jenkins, GitHub Actions).
• Automate infrastructure and platform lifecycle using Infrastructure as Code and configuration management.
• Participate in architecture design, reliability engineering, and capacity planning.
• Ensure security, compliance, and audit readiness (PCI DSS, secrets management, access control).

What We Expect From You

• Strong hands-on Linux expertise (Debian, Ubuntu, systemd, networking, performance tuning).
• Deep experience with AWS:
  • Compute (EC2, ASG, EKS)
  • Networking (VPC, Load Balancers, peering)
  • Managed databases (RDS Aurora)
  • Messaging (SQS, Kafka)
• Strong database operations knowledge: MySQL HA, replication, backup strategies.
• Production experience with Kubernetes (cluster architecture, HA, upgrades, disaster recovery).
• Advanced CI/CD experience: Jenkins, GitHub Actions, GitOps practices.
• Strong Cloudflare expertise: DNS, CDN, WAF, DDoS protection.
• Infrastructure as Code: Terraform (mandatory), Ansible.
• Scripting and automation in Bash and Python.
• Solid understanding of networking and security fundamentals (TLS, IAM, VPN, firewalling, zero-trust).
• Experience working in regulated environments or with security standards (PCI DSS is a plus).

 Tech Stack

AWS, Kubernetes, Terraform, Helm, GitHub Actions, VictoriaMetrics, Grafana, New Relic, Aurora, Redis, Cloudflare, Python, Bash.

What We Offer:

We believe that a happy team builds the best products. Here is how we support you:

Remote & Flexible – Work from anywhere. Our core hours are 09:00/10:00 to 17:00/18:00 (Kyiv time), Monday–Friday.

Financial Stability – Timely compensation payments.

Personal Equipment Policy – Equipment is provided to ensure comfortable and efficient work.

Knowledge Sharing – We regularly gather to discuss new trends, share insights, and grow together.

Community – Work in a team of like-minded professionals who support, inspire, and tackle complex challenges together.

Creative Freedom – We encourage initiative and provide space for professional expression and implementation of your ideas.

Time-off Policy: up to 29 days off per year, including up to 5 days for health-related absence (without medical confirmation);

Atmosphere – A friendly, results-oriented environment focused on mutual respect, free from unnecessary bureaucracy and pressure.

We believe in unlocking the inner potential of each team member within an open and democratic culture.

We look forward to welcoming you to our team!